<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="bootstrap.min.css">
    <style></style>
</head>
<body>
    <a class="btn btn-default" href="#" role="button">Link</a>
    <button class="btn btn-default" type="submit">Button</button>
    <input class="btn btn-default" type="button" value="Input">
    <input class="btn btn-default" type="submit" value="Submit">  
    <div class="btn btn-default">666</div>  
    <button type="button" class="btn btn-danger">（危险）Danger</button>
    <button type="button" class="btn btn-danger">（危险）Danger</button>
    <button type="button" class="btn btn-danger">（危险）Danger</button>
    <button type="button" class="btn btn-link">（链接）Link</button>
    <form>
        <div class="form-group">
          <label for="exampleInputEmail1">Email address</label>
          <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
        </div>
        <div class="form-group">
          <label for="exampleInputPassword1">Password</label>
          <input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
        </div>
        <div class="form-group">
          <label for="exampleInputFile">File input</label>
          <input type="file" id="exampleInputFile">
          <p class="help-block">Example block-level help text here.</p>
        </div>
        <div class="checkbox">
          <label>
            <input type="checkbox"> Check me out
          </label>
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <table class="table table-striped table table-bordered">
        <thead>
            <th>序号</th>
            <th>序号</th>
            <th>序号</th>
        </thead>
        <tbody class=>
            <tr>
                <td>1</td>
                <td>小明</td>
                <td>2</td>
            </tr>
            <tr>
                <td>1</td>
                <td>小明</td>
                <td>2</td>
            </tr>
            <tr>
                <td>1</td>
                <td>小明</td>
                <td>2</td>
            </tr>
            <tr>
                <td>1</td>
                <td>小明</td>
                <td>2</td>
            </tr>
        </tbody>
      </table>
</body>
</html>